C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 175/06 (2006.01) C08G 18/12 (2006.01) C08G 18/66 (2006.01) C08J 11/12 (2006.01) C09D 5/20 (2006.01) C08F 283/00 (2006.01)
Patent
CA 2338850
The present invention relates to light fast, aqueous, strippable coating compositions containing A) 40 to 90 wt.%, based on resin solids of A) and B), of aqueous polyurethane-polyureas and B) 10 to 60 wt.%, based on resin solids of A) and B), of polymers prepared from radically polymerizable monomers, wherein the percentages of A) and B) add up to 100, based on the weight of resin solids of A) and B). The present invention relates also to substrates coated with these strippable coating compositions. In addition, the present invention relates to the use of the stripped coatings as recycled material by mechanically comminuting the stripped coatings, optionally after cleaning, and then either pressing them in heatable presses to form sheets, or extruding them in an extruder to form endless thermoplastic threads, and then processing the resulting threads by known granulating methods to form cylindrical, spherical, lenticular or rhombic granules. Finally, the present invention relates to the use of the resulting thermoplastic granules for the production of articles by known processes such as injection molding, blow molding, deep-drawing, slush molding or flat extrusion.
Gruttmann Horst
Irle Christoph
Muller Hanns-Peter
Muller Heino
Petzoldt Joachim
Aktiengesellschaft Bayer
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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